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If two open organ pipes of length 50 cm and 51 cm sounded together produce 7 beats per second, the speed of sound is.

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If two open organ pipes of length 50 cm and 51 cm sounded together produce 7 beats per second, the speed of sound is.

(A) 307 m/s

(B) 327m/s

(C) 350m/s

(D) 357m/s

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(D) 357m/s 

If two open organ pipes of length 50 cm and 51 cm sounded together produce 7 beats per second, the speed of sound is 357 m/s

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